Connecting device for storage batteries



1. BIJUR. CONNECTING DEVICETOR STORAGE BATTERIES.

APPLICATION man APRJ, 1915.

1,334,833. Patented M31123, 1920.

WITNESSES: N INVEHTO we/w wim! A TTORNE Y 5 subject to deterioration in use. n v

jects will be in part obvious and m part pointed out hereinafter.

ITED STATES PATENT OFFICE.

JUSEPH IBIJI'UR, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, T0 BIJUE.

MOTQB. APPLIANCE GOMPANY, A CORPORATION OF DELAWARE.

CONNECTING DEVICE FOR STORAGE BATTERIES astens.

Specification of Letters Patent.

Patented Mar. 23, 1920.

Application filed April 1, 1915. Serial No. 18,489.

' To all whom it may concern:

East th street, in the county of New York and State of New Yorlnhave invented a new and Improved Connecting Device for Storage Batteries, of which the following specification is a full disclosure.

This invention relates to connecting de vices for storage batteries, and more particularly to the leads or conductors running to or from the batteries.

@ne of the objects thereof is to provide a reliable, eflicient and durable connecting de vice of the above nature. Another object is to provide a device of the above nature in which the parts have a tight fit and are not @ther 0b The invention accordingly consists in the featuresof construction, combinations of elements, and arrangement of parts, which will he exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

ln the accompanying drawing there is shown an embodiment of this invention in which T Figure 1- is a side'elevation, certainparts being cut away to disclose the construction more clearly, and Fig. 2 is a detail sectional view along the lineA-A of Fig. l.

Similar reference characters refer to similar parts throughout both views ofthe drawings.

Referringnow to this drawing in detail, there is shown at 1 a storage or secondary battery upon which is mounted a'terminal member or part-2. This member is electrically connected with the battery and is preferably rigidly mountedthereon being connected with or formed integral with a portion of the battery. Member 2 is provided with a tapering recess 3, which preferably forms an opening'extending entirely there- 'through and is preferably arranged in an up and down direction, although, if desired, it may extend horizontally or otherwise. Member 2 is preferably formed of lead, at least at its outer portions, and has formed therein or thereon a member 4 of relatively hard metal suchas copper or brass which extends about recess 3 by means of a ring portion 5. This'member not only increases the conductivity of the member 2, but being exposed to outward pressure as the tapering part, hereinafter described, is forced into the recess, is well adapted to stand such pressure and prevent deformation of the parts. The broad combination with these parts of a device of relatively hard metal exposed to pressureas a tapering plug is forced into the recess is not claimed herein, as it is claimed in the patent granted to me September l, 1914:, No. 1,108,883. There are, however, specifically different features in the present invention which in certain relations are of marked value, and one of which is embodied by the formation of the inner walls of the recess, as at 6, by a layer of relatively soft metal such as lead alloy.

The battery lead 7 which is here indicated as a flexible conductor 8, insulated at 9, has formed upon its end a member 10, the outer portion of which at 11 is preferably covered with lead. The end of member 10 takes the form of a tapered plug 12, preferably of hard metal, and so formed as to fit within the recess 3 extending beyond the same at the lower end as at 13 to permit it to make a free fit with the inner walls of the recess. The upper end of the plug 12 is provided with an internally threaded opening 14 with which there coacts a screw 15 bearing upon the upper surface of the member 2 by means of a washer 16,-and thus adapted to draw the plug firmly into its seat in the socket and hold it rigidly in such position.

. it may be noted that the outer portion of the. plug '12 is preferably provided with a layer or coating 17 of lead or similar metal. Inthe use of this device if it be desired to make connection with the battery the plug 12 is thrust within recess 3, and the screw 15 with its washer 16 inserted, as shown in Fig. 1 of the drawings, and tightened. This action forms an extremely close joint between the plug '12 and the soft walls of the, recess in which it is seated. The outward or expanding pressure, however, to

which these walls, and through them the" ring portion 5, are exposed, which pressure may reach a hlgh value, due to the wedglng action .of the plug, is effectively restrained bythe hard metal portion, and the device thus guarded against deformation in shape tery. It ma also be noted that the tapered member 12 ing of relatively hard metal forms secure threads for the screw 15 to coact with andthus permits any desired pressure ofcontact to be attained.

As many changes might be made 1n the above construction, and as man apparently different embodiments might made of this invention without departing from the scope. thereof, it is inten ed that all features herein described. or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.-

Having thus revealed this invention, I claim as new and desire to secure the following combinations of elements, or equivalents thereof, by Letters Patent of the United States I 1. In a connecting devlce for storage battery leads, in combination, a member electrically and mechanically connected with the battery, a conductor, a member on the end of said conductor, oneofsaid members being of tapered form and the other being provided with a tapered recess in which said tapered member is removably fitted,

- and means adapted to force said tapered member within said recess and hold it therein, said recessed member comprising a ortion of relatively hard metal'about sai recess and-havin soft metal interposed between said har metal and the outer surface of said tapered member.

2.. In a connecting device forstorage batteries, in combination, a member electrically and mechanically connected with the battery, a. conductor, and a member on the end of said conductor, one of said members being of tapered form and the other provided with a tapered recess in which said tapered member is removably fitted and said-recessed member comprising a portion of relatively hard metal extending about said recess for a material portion of the length thereof and having soft metal interposed between said hard metal and the outer surface of said tapered member.

3.. In a connecting device for storage batteries, in combination, a member electricall and mechanically connected with the bat- .te-ry, a conductor, a member on the end of said conductor, one of said members bein of tapered form and the other rovided with a tapered recess in which sai tapered member is removably fitted and said recessed i member comprising a portion of relatively hard metal extending about said recess for a material portion of the length thereof and having soft metal interposed between said hard metal and the outer surface of beingl mounted thereon, sald member being said tapered member, and means adapted to force said ta red member within said recess and hold it therein.

4. In a connecting device for storage buttery leads, in combination, a member electri'cally and .mechanically connected with. the battery, a conductor, a member secured .to said conductor, one of said members be ing of relatively hard metal and hav' a tapered outer surface, and the other mem r provided with a tapered recess in whic said tapered member is removably fitted, the walls of said recess being formed of soft metal and surrounded by a rela-' tively hard metal member exposed to pressure as said tapered member is forced into position, and means adapted to force said tapered member within said recess and hold it therein.

5. Ina connecting, device for storage batteries, in combination, a member electrically connected to a stora battery and rigidly p vided with a ta ering recess, a battery lead, a memberelectrically and mechanically connected with said lead and tapered to fit said recess, a threaded device interposed between said members and adapted to force said second member within said recess and recess, a threaded device interposed between said membersand adapted to force said second member within said recess and hold it therein, the inner walls of said recess being of soft metal, and a member of relatively hard metal extendin about said recess and exposed to pressure rom said tapered member through said soft metal as said tapered member is forced into said recess, said tapered portion bein of relativel hard metal and of such lengtli as normal beyond said recess in the direction from which it enters the same. 1

7. In a connecting device for storage bat tery leads, in combination, a member electrically and mechanically connected with the battery, a conductor, a member securedto said conductor, one of said members being provided with a tapered recess and the ot e y to extend recessed member extending about said recess and adapted to hold the same against substantial deformation, a portion of soft metal interposed between said first hard member and said last mentioned hard member, said soft metal having a tapering surface, and means adapted to force said first hard member within said recess and hold it therein.

8. In connectin device for storage battery leads, in com ination, a member electrically and mechanically connected with the battery, a conductor, a member secured to said conductor, one of said members being provided with a tapered recess and the other of said members being of relatively hard metal provided with an'outer layerof soft metal having a tapering form adapted to fit said recess, means adapted to force.

said outer member within said recess and hold it therein, and a part of relatively hard metal extending about said recess and exposed to pressure from said tapering memher as the latter is forced into position.

9. In a connecting device for storage battery leads, in combination, a conductor provided atits end with a tapering plug, a

metallic member electrically connected with said battery and provided with an insert of relatively hard metal having an aperture of substantially the same effective taper as that of said plug, means adapted to secure said plug within said aperture, and means forming a coating of. soft metal between the outer surface of said plug and the inner surface of said insert.

10. In a connecting device for storagebatteries, in combination, a member secured to one ofv the battery terminals and provided with an aperture having an inner surface of soft metal,'said member bein provided with an extension in the direction of the axis of said aperture whereby the inner surface of said aperture is increased.

11. A terminal connector for storage batteries comprising a lead body provided with a tapered socket adapted to receive a tapered terminal member, the socketed part having means wholly embeddedtherein for preventing spreading by the outward pressure of the tapered terminal member.

12. A terminal connector for storage batteries comprising a body having a portion provided with a tapered socket adapted to receive a tapered terminal member, said body being formed of non-corrodible metal having wholly embedded therein a member of relatively hard metal surrounding the socket. U

13. A terminal connector for storage batteries comprising a body adapted to be attached to a battery terminal and having a portion provided with a tapered socket, a tapered terminal member fitted in the socket, means for drawing the terminal member against the tapered wall of the socket, said socketed part being provided with a metal re-inforcing ring which is wholly embedded therein and is located wholly outside of the tapered wall of the socket. A

In witness whereof, I hereunto subscribe .my name, as attested by the two subscribing witnesses.

JOSEPH BIJUR. Witnessesi LEWIS BARNETT, i R. S. BLAIR. 

